130393531 has 2 divisors, whose sum is σ = 130393532. Its totient is φ = 130393530.

The previous prime is 130393507. The next prime is 130393573. The reversal of 130393531 is 135393031.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130393531 is a prime.

It is a super-2 number, since 2×130393531² = 34004945853295922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 130393531.

It is not a weakly prime, because it can be changed into another prime (130393331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65196765 + 65196766.

It is an arithmetic number, because the mean of its divisors is an integer number (65196766).

Almost surely, 2^130393531 is an apocalyptic number.

130393531 is a deficient number, since it is larger than the sum of its proper divisors (1).

130393531 is an equidigital number, since it uses as much as digits as its factorization.

130393531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3645, while the sum is 28.

The square root of 130393531 is about 11418.9986863998. The cubic root of 130393531 is about 507.0903531782.

The spelling of 130393531 in words is "one hundred thirty million, three hundred ninety-three thousand, five hundred thirty-one".